6.1 law of sines and area of oblique triangle
Authored by Erin Martin
Mathematics
9th - 12th Grade
CCSS covered
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An oblique triangle is any triangle that _______.
does not have a right angle
has 1 right angle
has 2 equal sides
has 3 different sides
Tags
CCSS.4.G.A.2
2.
FILL IN THE BLANKS QUESTION
5 mins • 1 pt
Use the angles to classify the triangles
all angles less than 90° - acute triangle
1 angle is equal to 90° - right triangle
1 angle is greater than 90° - obtuse triangle
(a)
Tags
CCSS.5.G.B.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the angles to classify the triangles
all angles less than 90° - acute triangle
1 angle is equal to 90° - right triangle
1 angle is greater than 90° - obtuse triangle
acute
right
Tags
CCSS.4.G.A.2
4.
FILL IN THE BLANKS QUESTION
5 mins • 1 pt
Use the angles to classify the triangles
all angles less than 90° - acute triangle
1 angle is equal to 90° - right triangle
1 angle is greater than 90° - obtuse triangle
(a)
Tags
CCSS.4.G.A.2
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Classify the triangle by both sides and angles (select all).
Right triangle
Acute triangle
Obtuse triangle
Isosceles triangle
Scalene triangle
Tags
CCSS.4.G.A.2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a = 3, and b = 4, and C = 90°, can you use the equation
A = 1/2 ab sin(C) to find the area?
Yes
No
Answer explanation
A = 1/2 (3 · 4) sin(90) = 1/2 · 12 · 1 = 6
Same as 1/2 bh
Tags
CCSS.HSG.SRT.D.9
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Select all that match this type of triangle
obtuse
scalene
oblique
isosceles
Tags
CCSS.4.G.A.2
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